I run a website which seems to have a problem with 303 Redirects.
The CMS is TYPO3 9.5.24.
I don't know where the redirects are coming from. Unfortunately the 303 redirects are not listed in the network tab of the console (testet Chrome, FF). Why not?
The Problem is Facebook is not able to scrape the pages. Their Sharing debugger (https://developers.facebook.com/tools/debug/) tells me "URL requested a HTTP redirect, but it could not be followed."
I checked with https://www.redirect-checker.org/index.php, there I get a loop of 303 redirects.
I can view the website in any browser just fine, no problems there.
I checked .htaccess
and the TYPO3 Backend for 303 redirects, but found nothing.
I suspected a server (nginx) misconfiguration but can't figure it out. Other websites on the same server do not have that problem.
Has anyone experienced similar problems?